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Connections 7 -- the Long Chain Search Educational Film Journals at Media History Project for references to this film Summary Traces the connection between 17th century mercantile competitio./iahe development of a coal - tar pitch to protect ship hulls, and the creation of waterproofed clothing, gaslight lamps, and nylon. Number 7 of the series.favoritefavoritefavoritefavoritefavorite ( 1 reviews ) Topics: Technology, Technology, Technology

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An introduction to many useful items or processes invented by the Chinese thousands of years ago, telling how we apply similar concepts to new ideas today and suggesting ways to simply duplicate or enjoy the ancient Chinese discoveries Topics: Technology, Technology

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Book digitized by Google from the library of the New York Public Library and uploaded to the Internet Archive by user tpb. Topics: Technology, Technology Source: http://books.google.com/books?id=0g4AAAAAMAAJ&oe=UTF-8

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Book digitized by Google from the library of the New York Public Library and uploaded to the Internet Archive by user tpb. Topics: Technology, Technology Source: http://books.google.com/books?id=tA4AAAAAMAAJ&oe=UTF-8

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Book digitized by Google from the library of the New York Public Library and uploaded to the Internet Archive by user tpb. Topics: Technology, Technology Source: http://books.google.com/books?id=Zg4AAAAAMAAJ&oe=UTF-8

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Book digitized by Google from the library of the New York Public Library and uploaded to the Internet Archive by user tpb. Topics: Technology, Technology Source: http://books.google.com/books?id=Gg0AAAAAMAAJ&oe=UTF-8

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Book digitized by Google from the library of Harvard University and uploaded to the Internet Archive by user tpb. Topics: Technology, Technology Source: http://books.google.com/books?id=gFQpAAAAYAAJ&oe=UTF-8

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Book digitized by Google from the library of the New York Public Library and uploaded to the Internet Archive by user tpb. Topics: Technology, Technology Source: http://books.google.com/books?id=Kg4AAAAAMAAJ&oe=UTF-8

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Book digitized by Google from the library of Harvard University and uploaded to the Internet Archive by user tpb. Topics: Technology, Technology Source: http://books.google.com/books?id=Nm4MAAAAYAAJ&oe=UTF-8